Improvement in expansion joints for pipes



N-PETERS, PHOTO-UTDWGRAPNER. WASHINGTON, D C.

@anni Gemine.

J. EVANS JONES, OF TIDIOUVTE; PENNSYLYANIA.

Letters Patent No. 102,010, dated April 19, 1870.

IMPRO'VEMENT IN EXPANSION JOINTS FOR PIPES.

The Schedule referred to in these Letters Patent and making part of the same.

To all lwhom lit may concern Be it known that I, J. EVANS J oxns, of Tdionte, in the county of Tarreo and State of Pennsylvania, have invented a new and improved Expansion Joint for Pipes; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying Y drawings forming part oi this specification, in which t-he drawing represents a longitudinal section of my improved expansion joint.

The object of this invention is to produce a snita ble joint for connecting the ends of pipes, the said joints allowing free expansion and contraction of the pipes during the changes of temperature.

In the oil regions, where pipes are laid to conduct the petroleum as well as for other liquids, an invention of this classis much needed, the devices heretofore proposed for the same purpose being either too expensive or impracticable.

\Vherc\'er pipes are laid near to the surface of the ground theyare considerably affected by variations of the temperature, and are, in cold weather, often drawn apart at the joints, especially if they are laid in warm weather.

My invention consists in' the use of a short piece of pipe, A, larger in diameter than the pieces B C of pipe to be connected, and long enough to allow the requisite degree of expansion and contraction.

A double nut, a, connects thc pipe C with the pipe A, said nut being contracted at-one end, to ada-pt it to tit the latter.

The other end of the pipe A carries a packing-box, b, and a gland, c, to form a ltight packing around the pipe B. lhe end of the pipe B is iitted through the packing, and carries within the pipe A a thiinhle or ring, d, which tits into the pipo A as-a piston does into a cylinder.

The joint thus produced' allows full expansion and contraction of the conducting-pipes, to the extentof play allowed to the thimblc d within the pipe B.

The pipe A can also be turned, thereby permitting the pipes B C to he used without being turned.

Having thus described my invention,

I claim as new and desire to secure by Letters Patl ent- In combination with the pipe A, the nut a, packingbox b, and gland c, to form joints for the pipes B and. C, all constructed and arranged as shown and described.

J. EVANS JONES. 'itnesses:

WM. T. SCHEIDE, E. W. Ms'r'ranws. 

